75418638357 has 4 divisors (see below), whose sum is σ = 100558184480. Its totient is φ = 50279092236.

The previous prime is 75418638341. The next prime is 75418638367. The reversal of 75418638357 is 75383681457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 75418638357 - 2⁴ = 75418638341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75418638297 and 75418638306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75418638367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12569773057 + ... + 12569773062.

It is an arithmetic number, because the mean of its divisors is an integer number (25139546120).

Almost surely, 2^75418638357 is an apocalyptic number.

It is an amenable number.

75418638357 is a deficient number, since it is larger than the sum of its proper divisors (25139546123).

75418638357 is a wasteful number, since it uses less digits than its factorization.

75418638357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25139546122.

The product of its digits is 16934400, while the sum is 57.

The spelling of 75418638357 in words is "seventy-five billion, four hundred eighteen million, six hundred thirty-eight thousand, three hundred fifty-seven".